Titan’s Bride, The vol. 5 (Yaoi manga)

The Titan’s Bride manga volume 5 features story and art by ITKZ.

Somehow, Kouichi has been pulled into Tildant’s succession crisis and is targeted by Tildant nobles, accused of being an unworthy partner to a king. Wanting to protect his beloved Caius and prove himself to the court, Kouichi accepts a challenge to prove his worth once and for all!